Inkstand.



F. LA CHAPELLE.

INKSTAND.

APPLICATION FILED OCT. 2. I916.

Patented Apr. 24, 191?.

FlE E tinirnn snares PATENT carton FRANK LA CHAPELLE, OF ERIE. PENNSYLVANIA.

INKSTAND.

Application filed October 2, 1916.

To all whom it may concern:

Be it known that I, FRANK La (in-meme, a citizen of the United States, residing at time, in the county of Erie and State of Pennsylvania, have invented certain new and useful Improvements in Inkstands; and I do hereby declare the following to be a full clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to fountain inkstands having flexible diaphragms which operate automatically; and it consists in the novel construction and combination of the parts hereinafter fully described and claimed.

In the drawings, Figure 1 is a vertical section through an inkstantl constructed according to this invention. Fig. 2 is a plan view of the same.

The ink bottle or holder 2 is provided with a neck 3, and 1 is a stopper or cork which fits the neck, and which preferably has a flange 5 which rests on the top of the neck. This stopper has a chamber 6 which is open at its bottom, and it has a pen hole 7 at its top of smaller diameter than the chamber (3,so that a shoulder or seat/8 is formed at the top of the chamber.

A collapsible air bag or diaphragm 9 is arranged in the-chamber 6. This air bag is open at its bottom end, and its bottom edge is secured to the bottom end of the stopper, so that an annular space 10 for-ink is formed between the air bag and the stopper in the chamber 6. The air bag is formed of india rubber, or similar elastic material, and. the elasticity of its sides presses its upper and closed end portion against the shoulder or seat 8, so that the pen hole is closed. The air bag is shaped so that it does not stick Specification of Letters Patent.

Patented Apr. 24, 191?.

Serial No. 123,316.

when (lOPIQSSEd, and so that it closes the pen hole autonnitically.

A small tube or pipe 12 is secured to the stopper in communication with the annular ink space 10. and its lower end portion extends nearly to the bottom of the ink bottle.

\l'hen a pen is inserted in the pen hole and is pressed downwardly on the air bag or diaphragm so that the air bag is partially collapsed. the air in the upper part of the ink bottle is cmnpressed so that the ink isforced up the tube into the annular ink space, and the pen receives a supply of ink.

'liat I claim is:

1. An ink holder provided with a neck, a stopper inserted in the neck and having a pen hole at its top and a chamber below the pen hole. a collapsible air bag closed at its top and having its lower end secured to the lower part of the stopper and forming an annular ink space in the said chamber, and a tube communicating with the said ink space and extending downwardly in the ink holder.

2. An ink holder provided with a neck, a stopper inserted in the neck and having a pen hole at its top and a chamber below the pen hole, a shoulder being formed at the top of the said chamber around the pen hole, a collapsible air bag closed at its top and having its lower end secured to the lower part of the stopper and forming an annular ink space in the said chamber, the upper part of the said air bag being normall) pressed against the said shoulder, and a tube communicating with the said ink space and entendinp downwardly in the ink holder.

In testimony whereof I have affixed my signature.

' FRANK LA CHAPELLE. 

